WASHINGTON — A government document states that more than 2 million people who got health insurance under President Barack Obama's law have data discrepancies that could jeopardize coverage for some.

Two million people works out to about one out of four who signed up, creating a huge paperwork headache for the feds, and exposing some consumers to repayment demands if they got too generous a subsidy — or even loss of coverage.

The administration says it is triple-checking consumer information to ensure that only those who are legally entitled to health care subsidies are getting them, and that they are receiving the correct amount.

House and Senate lawmakers are also looking into the data issues, which involve not only income, but citizenship, immigration status and other factors.